{"id":19011,"date":"2021-11-16T10:56:29","date_gmt":"2021-11-16T10:56:29","guid":{"rendered":"https:\/\/windowsreport.com\/fr\/?p=19011"},"modified":"2025-09-28T15:14:26","modified_gmt":"2025-09-28T12:14:26","slug":"activer-secure-boot-windows-11","status":"publish","type":"post","link":"https:\/\/windowsreport.com\/fr\/activer-secure-boot-windows-11\/","title":{"rendered":"Windows 11 et d\u00e9marrage s\u00e9curis\u00e9 : activer Secure Boot"},"content":{"rendered":"\n

La mise \u00e0 niveau vers le nouveau syst\u00e8me d’exploitation de Microsoft s’accompagne des exigences particuli\u00e8res. Comme vous devez le savoir \u00e0 ce point, il faut d’abord \u00eatre \u00e9ligible \u00e0 la mise \u00e0 jour pour pouvoir installer Windows 11<\/a>.<\/p>\n\n\n\n

La configuration minimale requise vise notamment la pr\u00e9sence du module de plateforme s\u00e9curis\u00e9e TPM 2.0 ainsi que l’activation Secure Boot, parmi d’autres param\u00e8tres tels que le stockage de 64 Go ou plus, RAM minimale de 4 Go, processeurs avec au moins 2 c\u0153urs, 11 GHz et 64 bits et plus encore.<\/p>\n\n\n\n

D’ailleurs, la manque de ces fonctionnalit\u00e9s \u00e9tait responsable de l’infame message d’erreur Ce PC ne peut pas ex\u00e9cuter Windows 11<\/a><\/em>, qui a hant\u00e9 les internautes d\u00e9sireux de mettre leurs mains sur le nouveau OS juste apr\u00e8s la publication de l’application Contr\u00f4le d\u2019int\u00e9grit\u00e9 du PC.<\/p>\n\n\n\n

PC Health Check ou Contr\u00f4le d\u2019int\u00e9grit\u00e9 du PC fut la raison des controverses au d\u00e9but, notamment parce qu’elle affichait des indications incompl\u00e8tes et confuses. On voyait juste que que le PC n’\u00e9tait pas compatible Windows 11, mais sans savoir exactement ce qui manquait ou ce qui \u00e9tait mal param\u00e9tr\u00e9.<\/p>\n\n\n\n

Pourquoi mon PC ne peut pas ex\u00e9cuter Windows 11 ? Pourquoi mon PC n’est pas compatible Windows 11 ? Ce ne sont que deux exemples de questions essentielles qui sont rest\u00e9es sans r\u00e9ponse \u00e0 l’\u00e9poque.<\/p>\n\n\n\n

Pour pas mal d’utilisateurs, le probl\u00e8me avec PC Health Check<\/a> venait du fait qu\u2019ils disposaient de Secure Boot, mais l’option \u00e9tait d\u00e9sactiv\u00e9e dans le BIOS. Il fallait donc justement reconcilier Windows 11 et d\u00e9marrage s\u00e9curis\u00e9. <\/p>\n\n\n\n

Un autre petit utilitaire est alors venu au secours : WhyNotWin11 pour tester la compatibilit\u00e9 Windows 11<\/a>.<\/p>\n\n\n\n

R\u00e9cemment, Microsoft a publi\u00e9 une version mise \u00e0 jour et am\u00e9lior\u00e9e de leur propre outil de test, ce qui fait que vous puissiez d\u00e9sormais t\u00e9l\u00e9charger PC Health Check en toute s\u00e9curit\u00e9<\/a> pour v\u00e9rifier l’\u00e9ligibilit\u00e9 de votre appareil dans le contexte du basculement vers Windows 11.<\/p>\n\n\n\n

\"\"<\/a><\/figure><\/div>\n\n\n\n

Aujourd’hui, nous allons nous pencher sur l’une des fonctionnalit\u00e9s de s\u00e9curit\u00e9 inextricablement li\u00e9es \u00e0 la compatibilit\u00e9 Windows 11, Secure Boot. Voyons donc ce qui vaut la peine de savoir sur Windows 11 et d\u00e9marrage s\u00e9curis\u00e9.<\/p>\n\n\n\n

Comment savoir si Secure Boot est activ\u00e9 ?<\/h3>\n\n\n\n

Nous savons d\u00e9j\u00e0 que Windows 11 et d\u00e9marrage s\u00e9curis\u00e9 vont de pair, mais quel est le r\u00f4le de cette fonctionnalit\u00e9 exactement ? En fait, Secure Boot est un m\u00e9canisme de s\u00e9curit\u00e9 associ\u00e9 aux PC embarquant le BIOS UEFI. <\/p>\n\n\n\n

Normalement, tous les ordinateurs fabriqu\u00e9s \u00e0 partir de 2006 doivent \u00eatre \u00e9quip\u00e9s de cette fonctionnalit\u00e9 cens\u00e9e v\u00e9rifier l’authenticit\u00e9 du syst\u00e8me d’exploitation sur une machine et pr\u00e9venir le piratage de Windows.<\/p>\n\n\n\n

Autrement dit, le d\u00e9marrage s\u00e9curis\u00e9 UEFI d\u00e9tecte la falsification en v\u00e9rifiant la signature num\u00e9rique, la certification des pilotes et les fichiers cl\u00e9s du syst\u00e8me pour s’assurer que seuls les composants autoris\u00e9s par Microsoft sont utilis\u00e9s lors du d\u00e9marrage.<\/p>\n\n\n\n

Avant de chercher \u00e0 activer le d\u00e9marrage s\u00e9curis\u00e9 Windows 11, il faut d’abord v\u00e9rifier si votre PC en est \u00e9quip\u00e9. Le premier pas consiste \u00e0 s’assurer que vous avez r\u00e9gl\u00e9 le mode de d\u00e9marrage sur UEFI. <\/p>\n\n\n\n

Voici comment v\u00e9rifier si votre PC prend en charge le d\u00e9marrage s\u00e9curis\u00e9 UEFI :<\/p>\n\n\n\n

Informations syst\u00e8me\u00a0:<\/strong><\/p>\n\n\n\n

  1. Dans la zone de recherche Windows, tapez informations syst\u00e8me<\/em>.<\/span><\/li>
  2. Dans la nouvelle fen\u00eatre, cliquez sur R\u00e9sum\u00e9 syst\u00e8me<\/strong> disponible sur le volet de gauche.<\/span><\/li>
  3. Alternativement, vous pouvez utiliser le raccourci Windows + R<\/kbd><\/strong> pour ouvrir le menu\u00a0Ex\u00e9cuter<\/em>\u00a0et y\u00a0ins\u00e9rer\u00a0la commande\u00a0msinfo32<\/strong><\/span>.<\/li>
  4. Sur le panneau principal, v\u00e9rifiez le statut correspondant \u00e0 l’\u00e9l\u00e9ment\u00a0\u00c9tat du d\u00e9marrage s\u00e9curis\u00e9<\/strong> :\u00a0d\u00e9sactiv\u00e9, activ\u00e9 <\/em>ou non pris en charge<\/em>, selon le cas. \"\"<\/a><\/li><\/ol>\n\n\n\n

    Gestion des disques<\/strong> est un autre outil pratique qui vous permettra de\u00a0v\u00e9rifier\u00a0si le\u00a0d\u00e9marrage\u00a0s\u00e9curis\u00e9\u00a0est\u00a0activ\u00e9\u00a0sur votre PC.<\/p>\n\n\n\n

    Voici comment vous en servir :<\/p>\n\n\n\n

    1. Appuyez sur Win + R<\/kbd><\/strong> pour ouvrir le menu Ex\u00e9cuter<\/em>.<\/li>
    2. Dans le champs de saisie, faites entrer la commande diskmgmt.msc<\/strong>.<\/li>
    3. Ensuite, il vous suffit de cliquer avec le bouton droit sur le Disque 0<\/strong>.\u00a0<\/li>
    4. Si l’option Conversion en disque MBR<\/strong> est gris\u00e9e (comme indiqu\u00e9 sur la capture ci-jointe), vous n’avez pas activ\u00e9 le d\u00e9marrage s\u00e9curis\u00e9. \"\"<\/a><\/li><\/ol>\n\n\n\n

      Comment activer Secure Boot Windows 11 ?<\/h2>\n\n\n\n

      Si votre PC prend en charge le d\u00e9marrage s\u00e9curis\u00e9, il ne vous reste qu’\u00e0 activer Secure Boot Windows 11. \u00c0 cet effet, vous pouvez utiliser l’option UEFI ou bien le BIOS pour activer le d\u00e9marrage s\u00e9curis\u00e9 Windows 11.<\/p>\n\n\n\n

      1. Appuyez sur la touche F2<\/em> (Echapper, Supprimer, F10 ou la touche exacte indiqu\u00e9e par votre fabricant<\/strong>).<\/li>
      2. Depuis le menu D\u00e9marrage<\/strong>, s\u00e9lectionnez BIOS<\/strong>, puis Configuration<\/em> et Avanc\u00e9<\/em>.<\/li>
      3. S\u00e9lectionnez Options de d\u00e9marrage<\/strong> et D\u00e9marrage s\u00e9curis\u00e9<\/em> \u00e0 l’aide des fl\u00e8ches haut et bas, puis r\u00e9glez son \u00e9tat sur Activ\u00e9<\/strong>.<\/li>
      4. Enfin, faites enregistrer pour sauvegarder les modifications et red\u00e9marrez votre ordinateur.<\/li><\/ol>\n\n\n\n\n\n
        1. Vous pouvez \u00e9galement utiliser l’option R\u00e9cup\u00e9ration<\/strong> sous D\u00e9marrage avanc\u00e9<\/strong> pour d\u00e9marrer dans le BIOS. \"\"<\/a><\/li>
        2. Il est important de s\u00e9lectionner D\u00e9pannage<\/strong> lorsque votre ordinateur vous propose de Choisir une option<\/em> suite au red\u00e9marrage.<\/li>
        3. \u00c0 partir de cet \u00e9cran, choisissez Options avanc\u00e9es<\/strong> et UEFI<\/em>, puis BIOS <\/em>et suivez les pas indiqu\u00e9s ci-dessus pour identifier l’option D\u00e9marrage s\u00e9curis\u00e9<\/strong>.<\/li><\/ol>\n\n\n\n
          1. Enfin, vous pouvez aussi vous servir du D\u00e9marrage Windows 10.<\/li>
          2. Tapez configuration du syst\u00e8me<\/strong> dans la zone de recherche disponible sur la barre de t\u00e2ches.<\/li>
          3. Rendez-vous sur l’onglet D\u00e9marrer<\/strong>.<\/li>
          4. Ensuite, cochez l’option D\u00e9marrage s\u00e9curis\u00e9<\/strong> en-dessous des Options de d\u00e9marrage<\/em>. \"\"<\/a><\/li>
          5. Appuyez sur Appliquer<\/strong> et OK<\/strong> pour enregistrer les modifications et red\u00e9marrez votre PC.<\/li><\/ol>\n\n\n\n\n\n

            Comment activer le d\u00e9marrage s\u00e9curis\u00e9 ? C’est simple avec nos astuces pratiques. Bien que le BIOS puisse intimider, surtout si vous ne l’avez jamais utilis\u00e9 auparavant, sa manipulation reste simple \u00e0 condition que vous agissiez prudemment et avec parcimonie.<\/p>\n\n\n\n

            Par contre, activer le d\u00e9marrage s\u00e9curis\u00e9 Windows 11\u00a0repr\u00e9sente\u00a0moiti\u00e9 du travail\u00a0n\u00e9cessaire\u00a0pour\u00a0\u00eatre\u00a0\u00e9ligible\u00a0\u00e0\u00a0la mise\u00a0\u00e0\u00a0jour.\u00a0Vous devez\u00a0\u00e9galement\u00a0savoir si votre carte\u00a0m\u00e8re\u00a0dispose du\u00a0module\u00a0TPM\u00a02.0.<\/p>\n\n\n\n

            Si ce n’est pas le cas, vous voudrez forcement savoir quel carte-m\u00e8re pour Windows 11<\/a> ? Ou peut-\u00eatre que vous souhaitez profiter de l’occasion pour compl\u00e8tement renouveler votre \u00e9quipement.<\/p>\n\n\n\n

            Dans ce cas, quels PC pour Windows 11 ? Plongez dans notre s\u00e9lection des meilleurs PC portables compatibles Windows 11<\/a> pour d\u00e9couvrir votre prochain favori.<\/p>\n\n\n\n

            N’h\u00e9sitez pas \u00e0 nous tenir au courant de votre exp\u00e9rience, la section des Commentaires est toujours ouverte !<\/p>\n","protected":false},"excerpt":{"rendered":"

            La mise \u00e0 niveau vers le nouveau syst\u00e8me d’exploitation de Microsoft s’accompagne des exigences particuli\u00e8res. Comme vous devez le savoir \u00e0 ce point, il faut d’abord \u00eatre \u00e9ligible \u00e0 la mise \u00e0 jour pour pouvoir installer Windows 11. La configuration minimale requise vise notamment la pr\u00e9sence du module de plateforme s\u00e9curis\u00e9e TPM 2.0 ainsi que […]<\/p>\n","protected":false},"author":252,"featured_media":19033,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_enabled_clarity":"","footnotes":""},"categories":[1019],"tags":[6766,10753,10510],"work":[10861,10862,10885,12],"class_list":["post-19011","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tutoriels","tag-demarrage-windows","tag-secure-boot","tag-windows-11","work-exclude-last-cta","work-exclude-mid-cta","work-pchelpsoft-driver-updater","work-sponsored-content"],"acf":[],"yoast_head":"\nWindows 11 et d\u00e9marrage s\u00e9curis\u00e9 : activer Secure Boot<\/title>\n<meta name=\"description\" content=\"Windows 11 et d\u00e9marrage s\u00e9curis\u00e9 ? C'est essentiel pour \u00eatre \u00e9ligible \u00e0 la MAJ. 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